JP6818705B2 - Electric power transaction support device and electric power transaction support method - Google Patents

Description

The present invention relates to an electric power transaction support device and an electric power transaction support method for supporting electric power transactions.

Full liberalization of electricity retailing began in 2016, and the volume of electricity traded through the Japan Electric Power Exchange (JEPX) is steadily increasing. At the Japan Electric Power Exchange, the electricity to be delivered the next day is divided into 48 trading slots in 30-minute units, and the power traded in each trading slot is handled as a commodity for trading.

There are several markets on the Japan Electric Power Exchange, including the one-day market and the one-hour market, which is also called the same-day market. In the one-day-ahead market, bids are accepted for each of the 48 trading slots delivered the next day, and the contract price and fixed amount for the next day are collectively determined based on the bids received by the deadline. On the other hand, in the market on the day, bids are accepted up to 1 hour before the corresponding time zone of the product in units of 30 minutes, and the rough market transaction is performed for each product. The above transactions on the Japan Electric Power Exchange are carried out by computer, and each electric power company participating in the transaction bids via the Internet or the like.

Patent Document 1 below discloses a technique relating to automatic bidding on the market one hour ago. Patent Document 1 describes a set of a bid price and an electric power procurement amount suitable for a bid execution method in the electric power trading market based on information on the electric power procurement amount from the electric power trading market and a contract price forecast in the electric power trading market. It discloses a technology for generating bid data for the electric power trading market consisting of.

Japanese Patent No. 6177411

When transmitting electric power across areas controlled by each electric power company, an interconnection line connecting the areas is used. While electricity trading between areas has become more active, the capacity increase of interconnection lines has been delayed. The free capacity of each interconnection line is managed by the OCCTO (hereinafter referred to as the OCCTO).

In the market one hour ago, if there is a combination of a sell bid and a buy bid that satisfy the contract conditions regarding the price and the order quantity, the possibility of consignment for the sale is confirmed. Confirmation of whether or not the consignment is possible is performed by inquiring from the Japan Electric Power Exchange to a wide-area organization whether the electric power corresponding to the sale or purchase can be transmitted using the interconnection line. If power transmission is possible after confirming the availability of consignment, the sale will be executed. If power transmission is not possible due to confirmation of consignment availability, that is, if there is no vacancy in the corresponding interconnection line, the sale is not executed and the corresponding sell bid and buy bid remain in the market.

On the other hand, the free capacity of the interconnection line may change. Therefore, even if there is no vacancy in the interconnection line and power transmission is not possible due to the above confirmation of consignment availability, power transmission may be possible after that. However, since the confirmation of whether or not the item can be sent is performed only when it is determined that there is a combination of a sell bid and a buy bid that satisfy the contract conditions, the interconnection line actually becomes vacant and power transmission becomes possible. However, the sale remains uncontracted. For this reason, there is a problem that the contract opportunity is lost even though the contract can be actually executed.

The present invention has been made in view of the above, and an object of the present invention is to obtain an electric power transaction support device capable of increasing contract opportunities in electric power transactions.

In order to solve the above-mentioned problems and achieve the object, the electric power trading support device according to the present invention does not execute the contract within a certain period of time after the first bid is bid on the electric power trading market. An empty capacity monitoring unit that monitors the empty capacity of one or more interconnection lines and determines whether or not the congestion state of one or more interconnection lines has changed based on the empty capacity of one or more interconnection lines. Be prepared. The electric power transaction support device further includes a re-bidding unit that re-bids the first bid when it is determined by the empty capacity monitoring unit that the congestion state of one or more interconnection lines has changed.

According to the present invention, there is an effect that contract opportunities can be increased in electric power trading.

The figure which shows the configuration example of the whole system including the business operator system which concerns on Embodiment 1. The figure which shows the configuration example of the enterprise system of Embodiment 1. The figure which shows the configuration example of the electric power transaction support apparatus of Embodiment 1. The figure which shows the configuration example of the computer system which realizes the electric power transaction support device of Embodiment 1. The figure which shows an example of the product in the one hour ago market of Embodiment 1. The figure which shows an example of the board information of Embodiment 1. A sequence diagram showing an example of electric power transaction processing in the operator system, the electric power transaction system, and the wide area engine system of the first embodiment. A flowchart showing an example of a processing procedure in the power transaction support device of the first embodiment. The figure which shows an example of the empty capacity of the interconnection line in the consignment possibility confirmation of step S5 shown in FIG. The figure which shows an example of the determination result in the consignment possibility confirmation of Embodiment 1. The figure which shows an example of the empty capacity of the interconnection line after the empty capacity of the interconnection line changes from the state shown in FIG. The figure which shows an example of the judgment result in confirmation of whether or not the consignment is possible after the re-bidding of Embodiment 1. The figure which shows another example of the board information of Embodiment 1. A flowchart showing an example of a processing procedure in the power transaction support device according to the second embodiment. The figure which shows an example of the change of the board information when the bid tag which matches the contract condition with the bid is already present in the board information at the time of bidding by the business operator system in Embodiment 2. The figure which shows an example of the change of the board information when the business system makes a bid in the state which there is no bid tag which meets the contract condition in the board information in Embodiment 2. The figure which shows an example of the vacancy capacity of each interconnection line referred to in step S17 shown in FIG. The figure which shows an example of the empty capacity of each interconnection line after the empty capacity changes from the state shown in FIG. The figure which shows the configuration example of the electric power transaction support apparatus which concerns on Embodiment 3.

Hereinafter, the electric power transaction support device and the electric power transaction support method according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a diagram showing a configuration example of an entire system including a business operator system according to a first embodiment of the present invention. In the present embodiment, an example in which the electric power transaction support device according to the present invention is provided in the business operator system 1 shown in FIG. 1 will be described.

The electric power trading system 4 shown in FIG. 1 is a system for trading electric power, and is installed and managed by the Japan Electric Power Exchange and other electric power exchanges. The power trading system 4 is realized by one or more computers.

The electric power trading system 4 includes a transaction processing unit 41, a communication unit 42, and a storage unit 43. The communication unit 42 communicates with another device via the communication line 3. The storage unit 43 can store transaction information, which is various information related to electric power transactions, and interconnection line information, which is information related to interconnection lines. The transaction processing unit 41 realizes a transaction in the electric power trading market. Further, the transaction processing unit 41 receives the interconnection line information from the wide area institution system 5, and stores the interconnection line information in the storage unit 43. The interconnection line information includes the free capacity for each interconnection line. Further, the transaction processing unit 41 sends at least a part of the interconnection line information and the transaction information to the requesting device in response to the request received from the other device via the communication line 3 and the communication unit 42. , The transmission is performed via the communication unit 42 and the communication line 3. The details of the transaction information and the processing by the transaction processing unit 41 will be described later.

The business operator system 1 shown in FIG. 1 is a system including the electric power trading support device according to the present invention, and is installed and managed by an electric power business operator or the like who bids on the electric power trading market. The operator system 1 is connected to the electric power trading system 4 via the communication line 3. The communication line 3 is, for example, the Internet, but is not limited to the Internet and may be a dedicated line network or the like. The operator system 1 is realized by one or more computers.

The operator systems 2-1 and 2-2 shown in FIG. 1 are installed and managed by an electric power operator or the like who bids on the electric power trading market. The operator systems 1, 2-1 and 2-2 are installed by different operators. The operator systems 2-1 and 2-2 are connected to the electric power trading system 4 via the communication line 3. The operator systems 2-1 and 2-2 are each realized by one or more computers. The business operator systems 2-1 and 2-2 may have a function of automatically bidding on the electric power trading system 4, and are generally accessible to the electric power trading system 4 by input from the user. Computer system may be used. Further, at least one of the operator systems 2-1 and 2-2 may have the same function as the operator system 1.

The OCCTO system 5 is installed and managed by the OCCTO. The OCCTO system 5 is realized by one or more computers. The OCCTO system 5 includes an interconnection line management unit 51, a storage unit 52, and a communication unit 53. The interconnection line management unit 51 receives a plan for power generation, demand, and utilization of the interconnection line from each electric power company, and stores information about each interconnection line as interconnection line information in the storage unit 52 based on the accepted plan. Store. The interconnection line information includes the free capacity for each interconnection line. The method of accepting the plan from each electric power company may be a method of receiving the plan by communication, or a method of inputting the plan submitted in writing or the like by the operator of the wide area engine system 5. The communication unit 53 communicates with the electric power trading system 4. The communication line between the wide area engine system 5 and the electric power trading system 4 may be a dedicated line, the Internet, or the like.

Further, when the wide area engine system 5 receives the consignment availability confirmation described later from the electric power trading system 4, it determines whether or not transmission is possible based on the interconnection line information stored in the storage unit 52, and determines whether or not the transmission is possible, and outputs the determination result to the electric power. Send to the trading system 4. Further, the wide area engine system 5 transmits the interconnection line information stored in the storage unit 52 to the electric power trading system 4. The timing at which the interconnection line information is transmitted from the wide area engine system 5 to the electric power trading system 4 may be at regular intervals, or when the interconnection line information is updated.

In the example shown in FIG. 1, three business operator systems are connected to the electric power trading system 4 via the communication line 3, but the number of business operator systems connected to the electric power trading system 4 is limited to three. However, one or more business operator systems 1 according to the present invention may be connected to the electric power trading system 4, and the number of business operator systems connected to the electric power trading system 4 may be plural.

FIG. 2 is a diagram showing a configuration example of the operator system 1. As shown in FIG. 2, the bid processing device 11 and the electric power transaction support device 12 are provided. The bid processing device 11 makes a bid electronically by transmitting data corresponding to the bid tag to the electric power trading system 4, and receives the result of the bid from the electric power trading system 4. There are no particular restrictions on the bidding method performed by the bidding processing device 11, and any method may be used. For example, it may be a method of automatically generating data corresponding to a bid tag based on a predetermined condition and transmitting the data to the electric power trading system 4, or input from a user of the business operator system 1. Is received, data corresponding to the bid tag is generated based on the input, and the data may be transmitted to the electric power trading system 4.

FIG. 3 is a diagram showing a configuration example of the electric power transaction support device 12. The electric power transaction support device 12 includes a communication unit 121, a board information monitoring unit 122, an empty capacity monitoring unit 123, and a re-bidding unit 124. The communication unit 121 communicates with the electric power trading system 4 via the communication line 3. The board information monitoring unit 122 acquires board information, which is information on bid tags for each product, from the electric power trading system 4 via the communication unit 121 and the communication line 3, and monitors the acquired board information. That is, the board information monitoring unit 122 is a market monitoring unit that monitors the electric power trading market. The free capacity monitoring unit 123 acquires interconnection line information from the power trading system 4 via the communication unit 121 and the communication line 3, and monitors the free capacity of the interconnection line included in the interconnection line information. The re-bid unit 124 re-bids based on the instruction from the free space monitoring unit 123. The details of the processing in the electric power transaction support device 12 will be described later.

The bid processing device 11 and the electric power transaction support device 12 may be realized by individual computer systems, or the bid processing device 11 and the electric power transaction support device 12 may be realized by one computer. When the bid processing device 11 and the electric power transaction support device 12 are realized by one computer, the communication unit 121 of the electric power transaction support device 12 and the communication unit (not shown) of the bid processing device 11 are realized by one communication unit. May be done.

Here, a computer system that realizes the electric power transaction support device 12 of the present embodiment will be described. In the electric power transaction support device 12 of the present embodiment, the computer system is executed by the electric power transaction support device 12 which is a program in which the processing in the electric power transaction support device 12 is described on the computer system. Functions as. FIG. 4 is a diagram showing a configuration example of a computer system that realizes the electric power transaction support device 12 of the present embodiment. As shown in FIG. 4, this computer system includes a control unit 101, an input unit 102, a storage unit 103, a display unit 104, a communication unit 105, and an output unit 106, which are connected via a system bus 107. There is.

In FIG. 4, the control unit 101 is, for example, a CPU (Central Processing Unit) or the like, and executes a power transaction support program in which processing in the power transaction support device 12 of the present embodiment is described. The input unit 102 is composed of, for example, a keyboard, a mouse, or the like, and is used by a user of a computer system to input various information. The storage unit 103 includes various memories such as RAM (Random Access Memory) and ROM (Read Only Memory) and a storage device such as a hard disk, and is a necessary program obtained by the control unit 101 in the process of processing. Memorize data, etc. The storage unit 103 is also used as a temporary storage area for the program. The display unit 104 is composed of an LCD (liquid crystal display panel) or the like, and displays various screens to a user of a computer system. The communication unit 105 is a receiver and a transmitter that performs communication processing. The output unit 106 is a printer or the like. Note that FIG. 4 is an example, and the configuration of the computer system is not limited to the example of FIG.

Here, an operation example of the computer system until the electric power transaction support program of the present embodiment becomes executable will be described. In the computer system having the above-described configuration, for example, a power transaction support program is stored from a CD-ROM or DVD-ROM set in a CD (Compact Disc) -ROM or DVD (Digital Versatile Disc) -ROM drive (not shown). It is installed in part 103. Then, when the electric power transaction support program is executed, the electric power transaction support program read from the storage unit 103 is stored in the storage unit 103. In this state, the control unit 101 executes the process as the power transaction support device 12 of the present embodiment according to the program stored in the storage unit 103.

In the above description, a program describing processing in the power transaction support device 12 is provided using a CD-ROM or a DVD-ROM as a recording medium, but the present invention is not limited to this, and the configuration and provision of a computer system are provided. Depending on the capacity of the program and the like, for example, a program provided by a transmission medium such as the Internet via the communication unit 105 may be used.

The board information monitoring unit 122, the empty capacity monitoring unit 123, and the re-bidding unit 124 shown in FIG. 3 are realized by the control unit 101 of FIG. Further, the storage unit 103 is also used to realize the board information monitoring unit 122, the empty capacity monitoring unit 123, and the re-bidding unit 124. The communication unit 121 shown in FIG. 3 is realized by the communication unit 105 shown in FIG.

The bid processing device 11, the electric power trading system 4, and the wide area engine system 5 are also realized by the computer system in the same manner. The bid processing device 11, the electric power transaction support device 12, the electric power transaction system 4, and the wide area engine system 5 may each be realized by a plurality of computer systems. Further, as described above, the bid processing device 11 and the electric power transaction support device 12 may be realized by one computer.

Here, the electric power transaction that is a prerequisite in the present embodiment will be described. In this embodiment, it is premised on an electric power trading market that is executed by the rough market method, such as the same-day market opened by the Japan Electric Power Exchange. In the Zaraba method, if the price and order quantity match between the sell bid and the buy bid, the execution process proceeds. In the case of electric power trading, if the price and order quantity match between the sell bid and the buy bid, a consignment availability confirmation is performed, which is a confirmation of whether or not electric power can be transmitted using the interconnection line used in this sale and purchase. , If power transmission is possible after confirming the availability of consignment, a contract will be made.

In the following, the operation of this embodiment will be described by taking as an example the one-hour-old market opened by the Japan Electric Power Exchange. It should be noted that the present invention is not limited to the same-day market established by the Japan Electric Power Exchange, but it is a power trading market that is contracted by the rough field method, and it is confirmed whether power can be transmitted using an interconnection line. It can be applied to other electricity trading markets as long as it is a power trading market that is executed after it is closed.

FIG. 5 is a diagram showing an example of a product in the market one hour ago. As shown in FIG. 5, one day is divided into trading slots in units of 30 minutes, and each trading slot is treated as one product. Therefore, each product is identified by day and time zone. In FIG. 5, the transaction quota identified by the day and time zone is described as the product name. In the following, the trading quota is set to 30-minute units on the premise of the market one hour before the opening by the Japan Electric Power Exchange, but the present invention can be applied even if the trading quota is a unit other than 30-minute units. Is.

Next, the processing in the transaction processing unit 41 of the electric power transaction system 4 will be described. The transaction processing unit 41 receives data indicating a bid tag for each product from the business operator systems 1, 2-1 and 2-2 via the communication unit 42. Hereinafter, the data indicating the bid tag is also simply referred to as a bid tag. There are two types of bid tags: sell bid bids and buy bid bids. The list of bid tags for each product is called board information, and the board information is stored in the storage unit 43 as a part of transaction information.

The transaction processing unit 41 monitors the bid tags for each product, and if there is a combination of a sell bid and a buy bid that match the price and quantity, confirms whether or not the bid can be sent. Specifically, the transaction processing unit 41 inquires to the OCCTO system 5 via the communication unit 42 whether or not the electric power corresponding to the sale and purchase can be sent by using the interconnection line, and the result of the inquiry is displayed in a wide area. Received from the institutional system 5. When the power transmission becomes possible after confirming the availability of consignment, the transaction processing unit 41 makes a contract for the sale, makes a contract for the sale that satisfies the contract condition based on the bid tag, and sends a notification indicating that the contract is made to the communication unit 42. Send to the corresponding operator system via.

FIG. 6 is a diagram showing an example of board information. FIG. 6 shows an example of board information regarding the time zone from 10:00 to 10:30 on August 1, 2017. One line in FIG. 6 corresponds to one bid tag. Among the bid tags shown in FIG. 6, the bid tag A, which is the uppermost bid tag, is a bid tag bid by the business operator system 1. The bid tag A has a type of sale, an order quantity of 50 kWh, and a bid price of 13 yen / kWh. Of the bids shown in FIG. 6, the second bid is a bid bid by the business operator system 2-1. The type of buying and selling is buy, the order quantity is 50 kWh, and the bid price is It is 13 yen / kWh. Of the bids shown in FIG. 6, the third bid is a bid bid by the business operator system 2-2, the type of sale is sell, the order amount is 50 kWh, and the bid price is It is 15 yen / kWh. In the board information shown in FIG. 6, the top bid and the second bid match the price, that is, the bid price and the order quantity, and can be executed from the viewpoint of the price and the order quantity. .. Further, although not shown in FIG. 6, each bid tag includes information for identifying the bidding business operator and a bidding time, which is the bidding time.

FIG. 7 is a sequence diagram showing an example of electric power transaction processing in the operator systems 1 and 2, the electric power trading system 4, and the wide area engine system 5. The wide area engine system 5 transmits the interconnection line information to the electric power trading system 4 (step S1). When the electric power trading system 4 receives the interconnection line information, it stores it in the storage unit 43. The electric power trading system 4 can transmit interconnection line information to each business operator system in response to a request from each business operator system.

The bid processing device 11 of the business operator system 1 transmits the bid tag A to the electric power trading system 4 (step S2). It is assumed that the bid tag A is the bid tag A shown in FIG. Next, the business operator system 2-1 transmits the bid tag B to the electric power trading system 4 (step S3). It is assumed that the bid tag B is the second-tier bid tag shown in FIG. The electric power trading system 4 determines that the bid tag A and the bid tag B meet the contract conditions in terms of price and order quantity (step S4), and confirms whether or not the bid can be sent for sale (step S5). Specifically, the electric power trading system 4 identifies a business operator corresponding to the bid tag A and the bid tag B, and the electric power of the ordered amount corresponding to the interconnection line used for the transfer of electric power between the business operators. Is inquired to the OCCTO system 5, and the result of the inquiry, that is, the determination result of whether or not the power can be transmitted is received from the OCCTO system 5. In the confirmation of whether or not the power can be sent, the electric power trading system 4 may specify only the order quantity and receive the judgment result of whether or not the power transmission is possible for all the interconnection lines, or specify the corresponding interconnection line. You may confirm the availability of consignment. In the former case, when the determination result is received, the electric power trading system 4 determines whether or not power transmission is possible based on the determination result of the interconnection line corresponding to the corresponding sale and purchase among the received determination results.

When power transmission is possible by confirming whether or not the item can be sent (step S6 Yes), the electric power trading system 4 makes a contract for the sale and purchase corresponding to the bid tag A and the bid tag B (step S7). When power transmission is not possible due to confirmation of consignment availability (step S6 No), the electric power trading system 4 does not execute the sale and purchase corresponding to the bid tag A and the bid tag B, so that the bid tag A and the bid tag B are used for electric power transaction. It remains on the market. After that, the wide area engine system 5 again transmits the interconnection line information to the electric power trading system 4 (step S8). As described above, the wide area engine system 5 transmits the interconnection line information to the electric power trading system 4 on a regular basis or when there is a change in the interconnection line information.

Here, if No is obtained in step S6, the state of the interconnection line may change thereafter, and a vacancy may occur in the interconnection line used for trading corresponding to the bid tag A and the bid tag B. The free capacity of the interconnection line varies depending on the result of the contract, but the free capacity may increase. For example, if the demand at the supply destination is expected to decrease on the day and the amount of power transmission is reduced from the planned amount, the planned power transmission will not be possible due to a trouble at the power plant and the amount of power transmission will be reduced. If it decreases, the free capacity of the interconnection line will increase. Changes in the usage plan of these interconnection lines will be notified from the operator at any time and will be reflected in the interconnection line information in the OCCTO system 5.

For example, in the interconnection line information transmitted in step S8 above, the empty capacity of the interconnection line used for trading corresponding to the bid tag A and the bid tag B is increasing, and the bid tag A and the bid tag B It is assumed that the empty capacity is available for consignment corresponding to the corresponding sale and purchase. Even in such a case, the electric power trading system 4 confirms whether or not the bid can be sent only when it is determined that there is a bid tag A and a bid tag B whose price and order quantity match the contract conditions. It remains in the electricity trading market without a contract with bid tag B.

In the present embodiment, in the above case, the power transaction support device 12 monitors the free capacity of the interconnection line and re-bids based on the free capacity so that the chances of making a contract can be increased. Specifically, the free capacity monitoring unit 123 monitors the free capacity of one or more interconnection lines when the first tag is not executed within a certain period of time after being bid on the electric power trading market. Then, it is determined whether or not there is a change in the congestion state of one or more interconnection lines based on the empty capacity of one or more interconnection lines. The re-bid unit 124 re-bids the first bid when it is determined by the empty capacity monitoring unit 123 that the congestion state of one or more interconnection lines has changed. An example of the first bid is a bid bid or sell bid bid bid by the business operator system 1. In the present embodiment, the one or more interconnection lines to be determined for the change in the congestion state are all the interconnection lines that may be used in the transaction in the electric power trading market. Hereinafter, the operation of the electric power transaction support device 12 of the present embodiment will be described.

FIG. 8 is a flowchart showing an example of a processing procedure in the electric power transaction support device 12 of the present embodiment. FIG. 8 shows the processing related to one product, but the electric power transaction support device 12 performs the processing shown in FIG. 8 for each product. First, the board information monitoring unit 122 monitors the board information of one product (step S11). Specifically, the board information monitoring unit 122 acquires board information from the electric power trading system 4 on a regular basis or when the board information changes. The board information is information on bid tags that are being bid on in the electric power trading market, and is a part of transaction information held by the electric power trading system 4 as described above. The electric power trading system 4 transmits the corresponding information to the requesting business operator system in response to the request from each business operator system.

Next, the board information monitoring unit 122 determines whether or not there is a bid tag that has not been executed for a certain period of time or longer, that is, a bid tag that has not been executed for a certain period of time or more since the operator system 1 bid. (Step S12). The board information monitoring unit 122 may obtain information about the bid tag bid by the business operator system 1 from the board information or from the bid processing device 11.

When there is a bid bid that is not executed for a certain period of time or more (step S12 Yes), the board information monitoring unit 122 determines whether or not there is a bid that matches the execution condition in the market (step S13). Specifically, the board information monitoring unit 122 determines whether the board information contains a bid tag that is determined not to be executed for a certain period of time or more and a bid tag that matches the contract conditions in terms of price and order quantity. That is, in the board information monitoring unit 122, if the first tag is not contracted within a certain period of time after bidding, the second tag that matches the contract conditions with the first tag is a power transaction. Monitor whether it is on the market.

When there is a tag in the market that matches the contract conditions (step S13 Yes), the board information monitoring unit 122 instructs the empty capacity monitoring unit 123 to monitor the free capacity of the interconnection line, and the empty capacity monitoring unit 123 instructs the free capacity monitoring unit 123 to monitor the free capacity of the interconnection line. (Step S14). Specifically, for example, the free capacity monitoring unit 123 periodically acquires interconnection line information from the power trading system 4, and when instructed to monitor the free capacity, the interconnection line included in the interconnection line information Start monitoring the free space.

The free capacity monitoring unit 123 determines whether or not the congestion of the interconnection line has been resolved within the specified time from the start of monitoring (step S15). Specifically, the empty capacity monitoring unit 123 is congested when the empty capacity corresponding to the order quantity in the first bid, which is a bid tag that is not executed for a certain period of time or more, can be secured in all the interconnection lines. Is determined to have been resolved. That is, the empty capacity monitoring unit 123 determines that the congestion state has changed when the empty capacity of all the interconnection lines exceeds the order amount in the first tag. As described above, in step S15, it is determined whether or not there is a change in the congestion state of the interconnection line based on the empty capacity of the interconnection line.

When it is determined that the congestion of the interconnection line has been resolved within the specified time (step S15 Yes), the empty capacity monitoring unit 123 instructs the re-bidding unit 124 to re-bid, and the re-bidding unit 124 re-bids (step S15 Yes). Step S16), the process ends. Specifically, the re-bid unit 124 withdraws the bid bids that are not executed for a certain period of time or longer, and transmits the bid bids having the same contents as the bid bids to the electric power trading system 4 again. Instead of the re-bidding unit 124 withdrawing and re-bidding, the empty capacity monitoring unit 123 instructs the bidding processing device 11 to re-bid, and the bidding processing device 11 withdraws and re-bids based on the instructions. May be good.

If No in step S12, No in step S13, and No in step S15, the process ends as it is.

While the interconnection line is being monitored in step S14, the board information monitoring unit 122 continues to monitor the board information, and there is a bid tag in the board information that matches the contract conditions with the bid tag that has not been contracted for a certain period of time or longer. If it does not work, the monitoring of the interconnection line may be stopped and the processing may be terminated. That is, when the second tag no longer exists in the electric power trading market, the free capacity monitoring unit 123 may stop monitoring the free capacity of the interconnection line.

Next, the operation of the electric power transaction support device 12 will be described specifically. As shown in FIG. 6, for the time zone from 10:00 to 10:30 on August 1, 2017, the business operator system 1 bids A for a bid with an order quantity of 50 kWh and a bid price of 13 yen / kWh. After that, as shown in the second row of FIG. 6 in the board information, it is assumed that the bid tag B of the buy bid with the order amount of 50 kWh and the bid price of 13 yen / kWh is bid. When the bid tag B is bid, the electric power trading system 4 executes the above-mentioned steps S4 and S5.

FIG. 9 is a diagram showing an example of the empty capacity of the interconnection line in the confirmation of whether or not the transfer is possible in step S5 shown in FIG. In FIG. 9, information 202 shows the free capacity of each interconnection line in the time zone from 10:00 to 10:30 on August 1, 2017. As shown in FIG. 9, of the interconnection lines # 1 to the interconnection line # 4, the interconnection line # 1 and the interconnection line # 3 have an empty capacity of 100 kW, and the interconnection line # 2 has an empty capacity of 200 kW. It is assumed that the free capacity of the interconnection line # 4 is 0 kW. In the following, the total number of interconnection lines will be described as 4, but the number of interconnection lines is not limited to this. In the confirmation of consignment availability, when the order quantity of 50 kWh is specified and the determination result of transmission availability for all interconnection lines is received, the electric power trading system 4 decides to receive the determination result shown in FIG. 10 from the wide area engine system 5. Become.

FIG. 10 is a diagram showing an example of a determination result in confirmation of whether or not consignment is possible. As shown in FIG. 10, from interconnection line # 1 to interconnection line # 3, since 0.5 hours (30 minutes) x free capacity is 50 kWh or more, it is possible to transmit an order quantity of 50 kWh. Interconnection line # 4 cannot transmit the ordered quantity of 50kWh. Therefore, bid tag A remains in the electricity trading market without being executed. In such a case, the electric power transaction support device 12 of the present embodiment monitors the free capacity of the interconnection line as described above because the bid tag A is not executed for a certain period of time after bidding. FIG. 11 is a diagram showing an example of the empty capacity of the interconnection line after the empty capacity of the interconnection line has changed from the state shown in FIG. In the information 202 shown in FIG. 11, the empty capacity of the interconnection line # 4 has changed from the state shown in FIG. 9, and it is possible to transmit an order amount of 50 kWh on all the interconnection lines. Therefore, the electric power transaction support device 12 determines that the congestion of the interconnection line has been eliminated in step S15 described above, and rebids in step S16. After the re-bid, if the above-mentioned bid tag B remains in the electric power trading market, the electric power trading system 4 confirms whether or not the bid can be sent again, and receives the determination result shown in FIG. 12 from the wide area institution system 5. Become.

FIG. 12 is a diagram showing an example of a determination result in confirmation of whether or not the item can be sent after re-bidding. In the example shown in FIG. 12, the free capacity of each interconnection line is assumed to be the free capacity shown in FIG. As described above, the electric power transaction support device 12 withdraws the bid tag A and re-bids based on the empty capacity shown in FIG. When the bid tag A is re-bid, if the bid tag B remains in the electric power trading market, the possibility of consignment is confirmed again. At this time, as shown in FIG. 12, it is determined that the order amount of 50 kWh can be transmitted on all interconnection lines. Therefore, the electric power trading system 4 contracts the rebid A and the bid B.

In the above example, the case where the bid bid bid by the business operator system 1 is a sell bid has been described, but the same applies to the case where the business operator system 1 bids a bid bid for a buy bid. FIG. 13 is a diagram showing another example of the board information of the present embodiment. In the example shown in FIG. 6, the bid bid bid by the business operator system 1 was a sell bid, but in the example shown in FIG. 13, the bid bid bid by the business operator system 1 is a bid bid C. Is. In the first stage of the board information shown in FIG. 13, the operator system 2-1 sells an order quantity of 50 kWh and a bid price of 13 yen / kWh during the time zone of 10:00 to 10:30 on August 1, 2017. It is assumed that the bidder is bidding, and then, as shown in the second row, the business operator system 1 bids the bid tag C for a buy bid with an order quantity of 50 kWh and a bid price of 13 yen / kWh. In this case, when the bid tag C is bid, the electric power trading system 4 executes the above-mentioned steps S4 and S5. If power transmission becomes impossible in step S5, the bid tag C remains in the electric power trading market without being executed. Even in such a case, the electric power transaction support device 12 of the present embodiment monitors the free capacity of the interconnection line as described above because the bid tag C is not executed for a certain period of time after bidding. Then, when the free capacity changes and it becomes possible to transmit an order amount of 50 kWh on all interconnection lines, a re-bid is performed. As a result, if the bid tag of the operator system 2-1 shown in the first stage of FIG. 13 remains in the electric power trading market, the bid tag C will be executed.

In the flowchart shown in FIG. 8, after the determination in step S12 is Yes, step S13 is executed, but the process may proceed to step S14 without performing step S13 after step S12. That is, when the bid is not executed for a certain period of time or more, the processes after step S14 may be performed. The first factor that does not execute for a certain period of time after bidding is that there is no bid tag that can be executed in terms of order quantity and price, and there is a bid tag that can be executed in terms of order quantity and price, but it is consigned. There are two possible causes: the second factor is that power transmission was not possible after confirming the availability. If step S13 is not carried out, even if the contract is not executed for a certain period of time or more due to the first factor, if Yes is obtained in step S15, a re-bid will be performed. However, such a re-bid is performed. There is no particular problem.

As described above, in the present embodiment, the power transaction support device 12 monitors the free capacity of the interconnection line when the bid is not executed for a certain period of time or more, and responds to the bid on all the interconnection lines. When the free capacity that can transmit the order quantity is secured, the bid is re-bid. Therefore, it is possible to increase contract opportunities in electric power trading.

In the example described above, an example in which the electric power transaction support device 12 is provided in the business operator system 1 has been described. That is, an example in which the electric power transaction support device 12 is provided in the business operator system 1 installed by the business operator who bids the first bill described above has been described. However, the place where the electric power transaction support device 12 is provided is not limited to this example. For example, the electric power trading support device 12 may be provided in the electric power trading system 4. Alternatively, the electric power transaction support device 12 may be provided separately from the business operator system 1 and the electric power transaction system 4. When the electric power transaction support device 12 is provided in the electric power transaction system 4, or when the electric power transaction support device 12 is provided independently of the operator system 1 and the electric power transaction system 4, the bid tag to be re-bid by the electric power transaction support device 12 is , It may be a bid tag of a plurality of businesses instead of a bid tag of a specific business operator. For example, the bid tags of all the companies participating in the bidding may be subject to re-bid.

Embodiment 2.
FIG. 14 is a flowchart showing an example of a processing procedure in the electric power transaction support device according to the second embodiment of the present invention. The configuration of the entire system of the present embodiment and the configuration of each device are the same as those of the first embodiment except that the function of the free capacity monitoring unit 123 in the power transaction support device 12 is partially different from that of the first embodiment. is there. The components having the same functions as those of the first embodiment will be described with the same reference numerals as those of the first embodiment, and the description overlapping with the first embodiment will be omitted. The operations of the wide area engine system 5, the electric power trading system 4, and the operator systems 2-1 and 2-2 in the present embodiment are the same as those in the first embodiment. Hereinafter, the differences from the first embodiment will be mainly described.

In the present embodiment, the empty capacity monitoring unit 123 receives a bid notification each time the operator system 1 makes a bid, and when the operator system 1 bids, the interconnection line information is transmitted from the electric power trading system 4. Of the acquired interconnection line information, information indicating the free capacity of each interconnection line is stored in association with the bid tag. Further, the empty capacity monitoring unit 123 also provides interconnection line information even when the operator system 1 has already bid and a bid tag that matches the contract conditions with the bid tag included in the board information is added to the board information. Is acquired from the electric power trading system 4, and among the acquired interconnection line information, information indicating the free capacity of each interconnection line is stored in association with the bid tag. As a result, in the present embodiment, each at the time when the electric power trading system 4 confirms whether or not the consignment is possible in step S5 described in the first embodiment, that is, when a set of bids satisfying the contract conditions are prepared. It is possible to grasp the free capacity of the interconnection line.

Alternatively, the free capacity monitoring unit 123 periodically acquires the interconnection line information, and holds all the free capacity of each interconnection line among the acquired interconnection line information as the free capacity information together with the time of acquisition. You may. Also in this case, by using the bid time and the free capacity information of each bid tag, it is possible to estimate the free capacity of each interconnection line at the time when the consignment possibility is confirmed in step S5. In this case, at least a part of the free space information may be deleted at regular intervals or when the free space information exceeds a certain capacity.

As shown in FIG. 14, the electric power transaction support device 12 carries out steps S11 to S13 in the same manner as in the first embodiment. If Yes in step S13, the empty capacity monitoring unit 123 is based on the empty capacity of each interconnection line at the bidding time of the monitored bid, which is a bid tag determined not to be executed for a certain period of time or longer in step S12. The interconnection line associated with the bid is specified (step S17). The identification of the interconnection line associated with the bid is to identify the interconnection line that causes the monitored tag to not execute even though the bid tag that meets the contract conditions exists in the electric power trading market. is there. That is, at the time when the electric power trading system 4 confirms whether or not the consignment is possible in step S5 described in the first embodiment, the interconnection line that cannot transmit the electric energy corresponding to the ordered amount is specified among all the interconnection lines. Is. As described above, in the present embodiment, the one or more interconnection lines to be determined for the change in the congestion state are the interconnection lines linked to the bid as described above, that is, the factor that the first tag cannot be executed. It is an interconnection line that can be.

In step S17, when the business operator system 1 bids, if there is already a bid tag in the board information that matches the bid and the contract conditions, the empty capacity monitoring unit 123 has the time when the business operator system 1 bids. Based on the free capacity of each interconnection line, the availability of power transmission is determined for each interconnection line in the same manner as the confirmation of whether or not transmission is possible. Then, the empty capacity monitoring unit 123 specifies the interconnection line determined to be unable to transmit power as the interconnection line associated with the bid. For example, this case corresponds to the case where the operator of the business operator system 1 monitors the board information and bids according to the target bid of the contract. FIG. 15 is a diagram showing an example of a change in board information when there is already a bid tag in the board information that matches the bid and the contract conditions at the time when the business operator system 1 bids. In the upper part of FIG. 15, only the sell bids bid by the business operator system 2-1 are included in the board information. In this state, when the business operator system 1 bids the bid bid for the buy bid, as shown in the lower part of FIG. 15, the bid bid that matches the sell bid of the business operator system 2-1 and the contract conditions is the board information. Will be added to. In such a case, in step S17, the free capacity monitoring unit 123 identifies the interconnection line associated with the bid based on the free capacity of each interconnection line at the time when the operator system 1 bids the bid. To do. The same applies when there is already a bid bid for a buy bid that matches the contract conditions with the bid at the time when the business operator system 1 bids the bid bid for the sell bid.

On the other hand, when the business operator system 1 makes a bid when there is no bid tag that matches the contract conditions in the board information, in step S17, the empty capacity monitoring unit 123 makes a bid that matches the bid and the contract conditions. Based on the free capacity of each interconnection line at the time, the transmission availability is determined for each interconnection line in the same manner as the consignment availability confirmation. Then, the empty capacity monitoring unit 123 specifies the interconnection line determined to be unable to transmit power as the interconnection line associated with the bid. FIG. 16 is a diagram showing an example of a change in the board information when the business operator system 1 bids in a state where there is no bid tag that matches the contract conditions in the board information. In the upper part of FIG. 16, only the buy bid bid by the business operator system 1 is included in the board information. In this state, when the business operator system 2-1 bids the bid bid for the sell bid, as shown in the lower part of FIG. 16, the sell bid that matches the contract condition with the buy bid of the business operator system 1 is the board information. Will be added to. In such a case, in step S17, the free capacity monitoring unit 123 connects the interconnection line to the bid based on the free capacity of each interconnection line at the time when the operator system 2-1 bids the bid. To identify. The same applies when the business operator system 1 bids a bid bid for a sell bid and a buy bid that matches the bid and the contract conditions are bid by another business operator system.

That is, the empty capacity monitoring unit 123 sets the later of the bid time of the first bid, which is a bid bid that is not executed for a certain period of time or longer, and the bid time of the second bid that matches the contract conditions with the first bid. Based on the free capacity of the interconnection line corresponding to, the interconnection line that can be a factor that the first tag cannot be executed is specified.

FIG. 17 is a diagram showing an example of the empty capacity of each interconnection line referred to in step S17 shown in FIG. 14 and the determination result of power transmission availability. In the example shown in FIG. 17, among the interconnection lines # 1 to the interconnection line # 4, the free capacity of the interconnection line # 1 and the interconnection line # 3 is equal to or larger than the order quantity of the bid bid shown in FIG. Yes, on the interconnection line # 2 and the interconnection line # 4, the empty capacity is less than the order quantity of the bid bid shown in FIG. Therefore, the interconnection line # 1 and the interconnection line # 3 can transmit the order amount of the bid tag shown in FIG. 15, and the interconnection line # 2 and the interconnection line # 4 are shown in FIG. It is not possible to transmit the order quantity of bid tags. In this case, in step S17, the empty capacity monitoring unit 123 specifies the interconnection line # 2 and the interconnection line # 4 as the interconnection line associated with the bid.

Returning to the description of FIG. 14, after step S17, the free capacity monitoring unit 123 monitors the free capacity of the interconnection line, that is, the interconnection line specified as the interconnection line associated with the bid (step S18). ). The free capacity monitoring unit 123 determines whether or not the congestion of the interconnection line has been resolved within the specified time from the start of monitoring (step S19). Specifically, the empty capacity monitoring unit 123 eliminated the congestion of the interconnection line when the free capacity corresponding to the order quantity of the bid bids that were not executed for a certain period of time or more could be secured in all the interconnection lines to be monitored. Judge. If it is determined that the congestion of the interconnection line has been resolved within the specified time (step S19 Yes), the process proceeds to step S16. Step S16 is the same as in the first embodiment. If No in step S19, the process ends.

Also in the present embodiment, as in the first embodiment, the board information monitoring unit 122 continues to monitor the board information while the interconnection line is being monitored in step S18, and the bid bid is not executed for a certain period of time or longer. When there are no more bids that meet the contract conditions in the board information, the monitoring of the interconnection line may be stopped and the processing may be terminated.

FIG. 18 is a diagram showing an example of a determination result of the empty capacity of each interconnection line and the power transmission availability after the empty capacity has changed from the state shown in FIG. It is assumed that the free capacity has changed from the state shown in FIG. 17 and the state shown in FIG. 18 has been reached within a specified time from the start of monitoring. In this case, it is possible to transmit the order amount of the bid tag shown in FIG. 15 on the interconnection line # 2 and the interconnection line # 4. On the other hand, in the state shown in FIG. 18, the interconnection line # 1 is unable to transmit the order amount of the bid tag shown in FIG. However, since the interconnection line # 1 is not the interconnection line specified in step S17, it is determined to be Yes in step S19. When all the interconnection lines described in the first embodiment are to be monitored, in the state shown in FIG. 18, it is determined that the bid is congested and re-bidding is not performed. However, in the present embodiment, the monitoring target is used. Since the interconnection line is narrowed down, the chances of re-bidding can be increased as compared with the first embodiment.

In the present embodiment, when the business operator system 1 bids, there are already bids in the board information that match the bid and the contract conditions, and there are no bids in the board information that match the contract conditions. Then, an example of carrying out an operation corresponding to both of the cases where the business operator system 1 bids can be described has been described. However, the operation corresponding to only one of these may be performed.

In the above description, the free capacity monitoring unit 123 eliminated the congestion of the interconnection line when the free capacity corresponding to the ordered quantity could be secured in all the interconnection lines to be monitored, that is, the congestion state changed. However, it may be determined that the congestion of the interconnection line has been eliminated when the free capacity corresponding to the order quantity can be secured in at least one of the interconnection lines to be monitored. In this case, for example, in step S17, when the free capacity of the interconnection line in the state shown in FIG. 17 is available, the free capacity of the interconnection line # 2 can be secured corresponding to the ordered quantity within the specified time, and the connection can be secured. Even if the free capacity corresponding to the ordered quantity cannot be secured for the system line # 4, it is determined as Yes in step S19. In fact, if the interconnection line used in the corresponding sale is interconnection line # 2, and the corresponding bid remains in the power trading market, it will be executed by re-bid, but in fact, it will correspond. If the interconnection line used for trading is interconnection line # 4, it cannot be executed even if the bid is re-bid. However, even in such a case, the process shown in FIG. 14 is performed again, and the interconnection line # 2, which is an interconnection line that could not be executed by re-bidding even if the free capacity corresponding to the order quantity can be secured, is stepped. By removing from the interconnection line specified in S17, the corresponding interconnection line can be sequentially narrowed down. By narrowing down and monitoring the interconnection lines in this way, it is possible to increase the possibility of execution at the time of re-bid.

Further, the empty capacity monitoring unit 123 may simply determine that the congestion state has changed when at least one of the empty capacities of all the interconnection lines has changed. Further, the empty capacity monitoring unit 123 may determine that the congestion state has changed when at least one of the empty capacities of all the interconnection lines increases.

Further, also in the present embodiment, if the process of step S13 is not performed and the step S12 is Yes, the process may proceed to step S17. In this case, it is not possible to grasp at what point in time a set of bids that match the contract conditions have been completed, but for example, a step is made based on the free capacity of each interconnection line at the time when the operator system 1 makes a bid. Carry out S17.

As described above, in the present embodiment, the interconnection line associated with the bid is specified based on the free capacity at the time when the bid that matches the contract condition is made, and the free capacity of the specified interconnection line is monitored. I tried to do it. Then, when the congestion of the monitored interconnection line is resolved, the bid is re-bid. As a result, the same effect as that of the first embodiment can be obtained. Further, in the present embodiment, the number of monitoring targets can be reduced as compared with the first embodiment, and the chances of contracting can be increased as compared with the first embodiment.

Further, in the first embodiment, re-bidding is carried out when the congestion of all the interconnection lines is resolved, and in the second embodiment, the interconnection line associated with the bid is specified, and the congestion of the specified interconnection line is caused. Re-bidding was carried out when the bid was resolved, but the method of re-bidding based on the free capacity of the interconnection line is not limited to these. For example, if there is a bid that has not been executed for a certain period of time, monitoring of the interconnection line is started, and after the start of monitoring, if there is a change in the free capacity of at least one of all the interconnection lines, a rebid is performed. You may do so. In addition, if there is a bid that is not executed for a certain period of time, monitoring of the interconnection line is started, and after the start of monitoring, if the free capacity of at least one of all interconnection lines changes in the direction of increasing, rebid You may do so.

The electric power transaction support device 12 of the present embodiment may be provided in the electric power transaction system 4 as in the electric power transaction support device 12 of the first embodiment, and the operator system 1 and the electric power transaction system 4 may be provided. It may be provided separately from.

Embodiment 3.
FIG. 19 is a diagram showing a configuration example of the electric power transaction support device 12a according to the third embodiment of the present invention. The configuration of the entire system of the present embodiment is the same as that of the first embodiment except that the business operator system 1 includes the electric power transaction support device 12a instead of the electric power transaction support device 12. Further, the configuration of each device constituting the entire system is the same as that of the first embodiment except for the configuration of the power transaction support device 12a. The components having the same functions as those of the first embodiment will be described with the same reference numerals as those of the first embodiment, and the description overlapping with the first embodiment will be omitted. The operations of the wide area engine system 5, the electric power trading system 4, and the operator systems 2-1 and 2-2 in the present embodiment are the same as those in the first embodiment. Hereinafter, the differences from the first embodiment will be mainly described.

The electric power transaction support device 12a includes a communication unit 121, a board information monitoring unit 122a, and a re-bidding unit 124a. The communication unit 121 is the same as the communication unit 121 of the first embodiment. The board information monitoring unit 122a executes the processes from steps S11 to S13 of the first embodiment, and in the case of Yes in step S13, instructs the re-bidding unit 124a to re-bid. That is, if the board information monitoring unit 122a does not execute the first tag within a certain period of time after it is bid on the electric power trading market, the second tag and the execution conditions match the first tag. It is a market monitoring department that monitors whether or not a bill is present in the electricity trading market. The re-bid unit 124a re-bids the first bid when the board information monitoring unit 122a determines that the second bid exists in the electric power trading market. Specifically, when the board information monitoring unit 122a instructs to re-bid, the re-bid is carried out at regular intervals. The number of times the re-bidding unit 124a re-bids at regular intervals may be one or more. As a result, it is possible to re-bid without waiting for the congestion of each interconnection line to be resolved, and it is possible to increase the chances of making a contract while eliminating the need for monitoring the interconnection line. In addition, there is a possibility that re-bidding can be performed more quickly than when re-bidding is performed after confirming that the congestion on the interconnection line has been eliminated.

In addition, even while re-bids are repeated at regular intervals, the board information monitoring unit 122a continues to monitor the board information, and there are bids in the board information that match the contract conditions with the bids that are not contracted for a certain period of time or longer. If it runs out, you may stop re-bidding and end the process. Further, also in the present embodiment, the electric power transaction support device 12a may not carry out the step S13 and may re-bid when the result is Yes in the step S12.

The electric power transaction support device 12a of the present embodiment may be provided in the electric power transaction system 4 as in the electric power transaction support device 12 of the first embodiment, and the operator system 1 and the electric power transaction system 4 may be provided. It may be provided separately from.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1,2-1,2-2 Business system, 3 communication line, 4 power transaction system, 5 wide area engine system, 11 bid processing device, 12,12a power transaction support device, 41 transaction processing department, 42,53,121 Communication unit, 43,52 storage unit, 51 interconnection line management unit, 122,122a board information monitoring unit, 123 free capacity monitoring unit, 124,124a re-bidding unit.

Claims (14)

If the first tag is not executed within a certain period of time after it is bid on the electricity trading market, the free capacity of one or more interconnection lines is monitored and the empty capacity of the one or more interconnection lines is monitored. An empty capacity monitoring unit that determines whether or not there is a change in the congestion state of one or more interconnection lines based on the capacity.
When the empty capacity monitoring unit determines that the congestion state of the one or more interconnection lines has changed, the re-bidding unit for re-bidding the first bid and the re-bidding unit.
An electric power transaction support device characterized by being equipped with. If the first tag is not executed within a certain period of time after bidding, whether or not there is a second tag in the electric power trading market that matches the contract conditions with the first tag. Market monitoring department to monitor
With
The free capacity monitoring unit is characterized in that when the market monitoring unit determines that the second tag exists in the electric power trading market, the free capacity monitoring unit starts monitoring the free capacity of the one or more interconnection lines. The electric power transaction support device according to claim 1. The second aspect of the present invention, wherein the empty capacity monitoring unit stops monitoring the empty capacity of the one or more interconnection lines when the second tag no longer exists in the electric power trading market. Electric power trading support device. The electric power transaction according to any one of claims 1 to 3, wherein the one or more interconnection lines are all the interconnection lines that may be used in the transaction in the electric power trading market. Support device. The claim is characterized in that the empty capacity monitoring unit determines that the congestion state has changed when the empty capacity of all the interconnection lines exceeds the order quantity in the first tag. 4. The electric power trading support device according to 4. The electric power according to claim 4, wherein the empty capacity monitoring unit determines that the congestion state has changed when at least one of the empty capacities of all the interconnection lines has changed. Transaction support device. The power according to claim 6, wherein the empty capacity monitoring unit determines that the congestion state has changed when at least one of the empty capacities of all the interconnection lines increases. Transaction support device. If the first tag is not executed within a certain period of time after bidding, whether or not there is a second tag in the electric power trading market that matches the contract conditions with the first tag. Market monitoring department to monitor
With
When the market monitoring unit determines that the second tag exists in the electric power trading market, the empty capacity monitoring unit has a bid time of the first tag and a bid time of the second tag. Based on the free capacity of the one or more interconnection lines corresponding to the later time, the interconnection line that may cause the first tag to be uncontractable is identified, and the free capacity of the specified interconnection line is monitored. The power transaction support device according to claim 1, wherein the congestion state is determined to have changed when at least one of the free capacity of the specified interconnection line changes. The claim is characterized in that the empty capacity monitoring unit determines that the congestion state has changed when the empty capacity of the specified interconnection line is equal to or greater than the order quantity in the first tag. 8. The electric power trading support device according to 8. The empty capacity monitoring unit determines that the congestion state has changed when at least one of the empty capacities of each of the specified interconnection lines exceeds the order quantity in the first tag. The electric power transaction support device according to claim 8. If the first tag is not executed within a certain period of time after it is bid on the electric power trading market, a second tag that matches the contract conditions with the first tag exists in the electric power trading market. The market monitoring department that monitors whether or not to do
When the market monitoring unit determines that the second bid exists in the electric power trading market, the rebid section rebids the first bid.
An electric power transaction support device characterized by being equipped with. The electric power transaction support device according to any one of claims 1 to 11, which is provided in a business operator system installed by a business operator who bids for the first tag. It is a power transaction support method in the power transaction support device.
If the first tag is not executed within a certain period of time after it is bid on the electricity trading market, the first step of monitoring the free capacity of one or more interconnection lines and
A second step of determining whether or not there is a change in the congestion state of the one or more interconnection lines based on the empty capacity of the one or more interconnection lines, and
When it is determined that the congestion state of the one or more interconnection lines has changed by the second step, the third step of re-bidding the first bid and the third step.
A power trading support method characterized by including. It is a power transaction support method in the power transaction support device.
If the first tag is not executed within a certain period of time after it is bid on the electric power trading market, a second tag that matches the contract conditions with the first tag exists in the electric power trading market. The first step to monitor whether or not to do
When it is determined by the first step that the second bill exists in the electric power trading market, the second step of re-bidding the first bill and the second step.
A power trading support method characterized by including.

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